netdev - [PATCH net-next v2 3/3] net/mlx4_en: Use ethtool

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Message-ID: <20240617172329.239819-4-kheib@redhat.com>
Date: Mon, 17 Jun 2024 13:23:29 -0400
From: Kamal Heib <kheib@...hat.com>
To: netdev@...r.kernel.org
Cc: Tariq Toukan <tariqt@...dia.com>,
	"David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Kamal Heib <kheib@...hat.com>
Subject: [PATCH net-next v2 3/3] net/mlx4_en: Use ethtool_puts/sprintf to fill stats strings

Use the ethtool_puts/ethtool_sprintf helper to print the stats strings
into the ethtool strings interface.

Signed-off-by: Kamal Heib <kheib@...hat.com>
---
 .../net/ethernet/mellanox/mlx4/en_ethtool.c   | 52 ++++++-------------
 1 file changed, 17 insertions(+), 35 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index fee02a94ed2f..0606f18e5bbe 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -450,7 +450,6 @@ static void mlx4_en_get_strings(struct net_device *dev,
 				uint32_t stringset, uint8_t *data)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
-	int index = 0;
 	int i, strings = 0;
 	struct bitmap_iterator it;
 
@@ -470,68 +469,51 @@ static void mlx4_en_get_strings(struct net_device *dev,
 		for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < NUM_PF_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < NUM_PKT_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < NUM_XDP_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < NUM_PHY_STATS; i++, strings++,
 		     bitmap_iterator_inc(&it))
 			if (bitmap_iterator_test(&it))
-				strcpy(data + (index++) * ETH_GSTRING_LEN,
-				       main_strings[strings]);
+				ethtool_puts(&data, main_strings[strings]);
 
 		for (i = 0; i < priv->tx_ring_num[TX]; i++) {
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"tx%d_packets", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"tx%d_bytes", i);
+			ethtool_sprintf(&data, "tx%d_packets", i);
+			ethtool_sprintf(&data, "tx%d_bytes", i);
 		}
 		for (i = 0; i < priv->rx_ring_num; i++) {
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_packets", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_bytes", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_dropped", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_xdp_drop", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_xdp_redirect", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_xdp_redirect_fail", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_xdp_tx", i);
-			sprintf(data + (index++) * ETH_GSTRING_LEN,
-				"rx%d_xdp_tx_full", i);
+			ethtool_sprintf(&data, "rx%d_packets", i);
+			ethtool_sprintf(&data, "rx%d_bytes", i);
+			ethtool_sprintf(&data, "rx%d_dropped", i);
+			ethtool_sprintf(&data, "rx%d_xdp_drop", i);
+			ethtool_sprintf(&data, "rx%d_xdp_redirect", i);
+			ethtool_sprintf(&data, "rx%d_xdp_redirect_fail", i);
+			ethtool_sprintf(&data, "rx%d_xdp_tx", i);
+			ethtool_sprintf(&data, "rx%d_xdp_tx_full", i);
 		}
 		break;
 	case ETH_SS_PRIV_FLAGS:
-- 
2.45.2